Slubber or fly-frame.



M. CAMPBELL. SLUBBER 0B. FLY FRAME.

APPLICATION FILED OUT. 16, 1908.

976,545. Patented Nov. 22-, 191 0.

2 SHEETS- MEET 1.

M. CAMPBELL. SLUBBER- 0R FLY FRAME.

APPLICATION FILED OCT. 16, 1908. 976,545. Patented Nov; 22, 1910;

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more srarns m MALCOLM CAMPBELL, OF WOONSOCKET, RHODE ISLAND, ASSIGNOR'IO WOONSOCKET MACHINE AND PRESS COMPANY, OF WOGNSOCKET, RI'IGDE ISLAND,A CORPORA- TION 0F RHODE ISLAND.

SLUBBER OIt FLY-FR AME.

To all whom ct may concern:

Be it known that I, MALoomr CAMPBELL, of W'oonsocket, in the county ofProvidence and State of Rhode Island, have invented certain new anduseful Improvements in Slubbers or Fly-Frames, of which the following isa specification.

This invention has relation to spinning machines, and more particularlyto fly frames or slubbers.

It has for its object to provide an im proved and simple mechanism fortransmitting power from the compound to the bobbin driving shafts, sothat they will be rotated evenly and without variation or lost motionduring the traverse of the bobbins. To this end, I employ a sprocketchain for transmit ting power from the compound or driver to anintermediate shaft arranged in parallelism with the bobbin shafts, and Imount said shaft in a radius arm whose axis of oscillation is coincidentwith the axis of one of the bobbin driving shafts. A. gear on theintermediate shaft intermeshes with and drives a gear on one of thebobbin shafts; and the chain is kept taut by any suitable means as bythe tension of a spring which exerts its stress upon the radius arm.

Referring to the accompanying drawings, Figure 1 represents a portion ofa slubber embodying my invention. Fig. 2 represents a front elevation ofthe same. Fig. 3 represents a plan view of the mechanism which embodiesthe invention. Fig. 4: represents a section on the line 4E4L of Fig. 1.Fig. 5 represents a section on the line 55 of Fig. 4.

Referring to said drawings, a indicates the driver from which power istransmitted to the bobbin shafts. It is illustrated as a shaft havingthereon, a sprocket wheel 6. The bobbin driving shafts are indicated atc and (Z respectively, and they together with the rail 6, arereciprocated vertically upon guides e by the usual mechanism. Todistinguish these two shafts, I designate the shaft 0 as a rear shaftand the shaft (Z as the front shaft. On these two shafts c and (Z, aresecured equal gears f and g, which intermesh as shown in Fig. 1, so thatsaid shafts are caused to be driven one from the other in oppositedirections.

h indicates a cylindrical bearing in which the front bobbin drivingshaft is journaled, said bearing having a flange h by whichSpecification of Letters Patent.

Application filed October 16, 1908.

Patented Nov. 22, 1910.

Serial No. 458,087.

it is attached to the rail 0 as shown in Fig. 4. Upon this hearing isjournaled a hub j of a radius arm j, said arm having at its end lateraltubular extensions 9' to constitute a bearing for what I term anintermediate shaft ]c. Upon one end of this shaft 70, is j ournaled apinion 7a which intermeshes with and drives a gear or pinion d on theshaft (Z. On its opposite end, the shaft 70 has a sprocket wheel mbetween which and the sprocket wheel I) is stretched an endless sprocketchain a. A coiled spring 0 of sufiicient strength is placed upon the hubj of the radius arm, one end thereof being secured to the flange it ofthe bearing, and the other end, which is extended, being passed throughan aperture in the web of the radius arm as shown in Fig. 2. This springserves to take up any slack in the sprocket chain and to hold it taut,and at the same time it permits said radius arm to swing about its axisof movement as the bobbin rail is reciprocated vertically. By mountingthe radius arm on an axis coincident with the axis of the front bobbinshaft, I am able to gear the intermediate shaft directly to said frontbobbin driving shaft by means of the straight spur gearing and effectrotation of the bobbin shafts in the proper directions.

Having thus explained the nature of my said invention and described away of constructing and using the same, although without attempting toset forth all of the forms in which it may be made, or all of the modesof its use, I declare that what I claim is:

1. In a spinning machine, a driver, a vertically movable bobbin shaft, aradius arm pivoted on the axis of said bobbin shaft, an intermediateshaft mounted in the free end of said radius arm, intermeshing gearingfor transmitting power from said intermediate shaft to said bobbinshaft, and means for transmitting power from said driver to saidintermediate shaft.

2. In a spinning machine, a driver, a vertically movable bobbin shaft, aradius arm pivoted on the axis of said bobbin shaft, an intermediateshaft mounted in the free end of said radius arm, intermeshing gearingfor transmitting power from said intermediate shaft to said bobbinshaft, a sprocket wheel on the driver, a sprocket wheel on saidintermediate shaft, a chain connecting said sprocket wheels, and meansfor'maintaining said radius arm in a position to take up the slack ofsaid chain.

3. In a spinning machine, a'driver, a vertically movable bobbin shaft, aradius arm pivoted on the axis of said bobbin shaft, an intermediateshaft mounted in the free end of said radius, arm, intermeshing gearingfor transmitting power from said intermediate shaft to said bobbinshaft, a sprocket Wheel on the driver, a sprocket Wheel on saidintermediate shaft, a chain connecting said sprocket Wheels, and aspring exerting a tension. on said radius arm to take up the slack insaid chain.

4.111 a spinning machine, a driving

